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Understanding how environmental characteristics affect bio-diversity patterns, from individual species to communities of species, is critical for mitigating effects of global change. A central goal for conservation planning and monitoring…

机器学习 · 计算机科学 2021-03-12 Wenting Zhao , Shufeng Kong , Junwen Bai , Daniel Fink , Carla Gomes

Deep neural networks have useful applications in many different tasks, however their performance can be severely affected by changes in the data distribution. For example, in the biomedical field, their performance can be affected by…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Pedro Vianna , Muawiz Chaudhary , Paria Mehrbod , An Tang , Guy Cloutier , Guy Wolf , Michael Eickenberg , Eugene Belilovsky

While deep learning has revolutionized financial forecasting through sophisticated architectures, the design of the supervision signal itself is rarely scrutinized. We challenge the canonical assumption that training labels must strictly…

机器学习 · 计算机科学 2026-02-12 Chen-Hui Song , Shuoling Liu , Liyuan Chen

This paper proposes a novel training scheme for fast matching models in Search Ads, which is motivated by the real challenges in model training. The first challenge stems from the pursuit of high throughput, which prohibits the deployment…

信息检索 · 计算机科学 2019-04-23 Xue Li , Zhipeng Luo , Hao Sun , Jianjin Zhang , Weihao Han , Xianqi Chu , Liangjie Zhang , Qi Zhang

In the era of increasingly complex AI models for time series forecasting, progress is often measured by marginal improvements on benchmark leaderboards. However, this approach suffers from a fundamental flaw: standard evaluation metrics…

机器学习 · 计算机科学 2026-05-28 Wanjin Feng , Yuan Yuan , Jingtao Ding , Yong Li

Machine learning models often encounter distribution shifts when deployed in the real world. In this paper, we focus on adaptation to label distribution shift in the online setting, where the test-time label distribution is continually…

机器学习 · 计算机科学 2022-01-06 Ruihan Wu , Chuan Guo , Yi Su , Kilian Q. Weinberger

This paper addresses the prevalent issue of label shift in an online setting with missing labels, where data distributions change over time and obtaining timely labels is challenging. While existing methods primarily focus on adjusting or…

机器学习 · 计算机科学 2024-11-01 Ruihan Wu , Siddhartha Datta , Yi Su , Dheeraj Baby , Yu-Xiang Wang , Kilian Q. Weinberger

Deep learning (DL) techniques are highly effective for defect detection from images. Training DL classification models, however, requires vast amounts of labeled data which is often expensive to collect. In many cases, not only the…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Adrian Shuai Li , Elisa Bertino , Rih-Teng Wu , Ting-Yan Wu

Supervisory signals have the potential to make low-dimensional data representations, like those learned by mixture and topic models, more interpretable and useful. We propose a framework for training latent variable models that explicitly…

Time series forecasting traditionally relies on unimodal numerical inputs, which often struggle to capture high-level semantic patterns due to their dense and unstructured nature. While recent approaches have explored representing time…

机器学习 · 计算机科学 2025-07-02 Sixun Dong , Wei Fan , Teresa Wu , Yanjie Fu

The goal of test-time adaptation is to adapt a source-pretrained model to a continuously changing target domain without relying on any source data. Typically, this is either done by updating the parameters of the model (model adaptation)…

计算机视觉与模式识别 · 计算机科学 2023-12-01 Mrigank Raman , Rohan Shah , Akash Kannan , Pranit Chawla

Real-time and human-interpretable decision-making in cyber-physical systems is a significant but challenging task, which usually requires predictions of possible future events from limited data. In this paper, we introduce a…

机器学习 · 计算机科学 2021-12-30 Erfan Aasi , Mingyu Cai , Cristian Ioan Vasile , Calin Belta

Meta-learning performs adaptation through a limited amount of support set, which may cause a sample bias problem. To solve this problem, transductive meta-learning is getting more and more attention, going beyond the conventional inductive…

机器学习 · 计算机科学 2023-04-25 Sanghyuk Lee , Seunghyun Lee , Byung Cheol Song

Time-series anomaly detection is a popular topic in both academia and industrial fields. Many companies need to monitor thousands of temporal signals for their applications and services and require instant feedback and alerts for potential…

机器学习 · 计算机科学 2020-09-10 Yuanxiang Ying , Juanyong Duan , Chunlei Wang , Yujing Wang , Congrui Huang , Bixiong Xu

Learning time-series representations when only unlabeled data or few labeled samples are available can be a challenging task. Recently, contrastive self-supervised learning has shown great improvement in extracting useful representations…

机器学习 · 计算机科学 2023-09-06 Emadeldeen Eldele , Mohamed Ragab , Zhenghua Chen , Min Wu , Chee-Keong Kwoh , Xiaoli Li , Cuntai Guan

Subjective time-series regression (STR) tasks have gained increasing attention recently. However, most existing methods overlook the label distribution bias in STR data, which results in biased models. Emerging studies on imbalanced…

机器学习 · 计算机科学 2023-07-18 Wenxin Xu , Hexin Jiang , Xuefeng Liang , Ying Zhou , Yin Zhao , Jie Zhang

Multi-label classification (MLC) assigns multiple labels to each sample. Prior studies show that MLC can be transformed to a sequence prediction problem with a recurrent neural network (RNN) decoder to model the label dependency. However,…

机器学习 · 计算机科学 2019-09-10 Che-Ping Tsai , Hung-Yi Lee

Learning transferable representations from unlabeled time series is crucial for improving performance in data-scarce classification. Existing self-supervised methods often operate at the point level and rely on unidirectional encoding,…

机器学习 · 计算机科学 2026-03-02 Mingyue Cheng , Xiaoyu Tao , Zhiding Liu , Qi Liu , Hao Zhang , Rujiao Zhang , Enhong Chen

Class distribution plays an important role in learning deep classifiers. When the proportion of each class in the test set differs from the training set, the performance of classification nets usually degrades. Such a label distribution…

图像与视频处理 · 电气工程与系统科学 2022-07-12 Wenao Ma , Cheng Chen , Shuang Zheng , Jing Qin , Huimao Zhang , Qi Dou

Large Language Models (LLMs) have recently demonstrated impressive capabilities in natural language processing due to their strong generalization and sequence modeling capabilities. However, their direct application to time series…

计算与语言 · 计算机科学 2025-08-12 Yanru Sun , Emadeldeen Eldele , Zongxia Xie , Yucheng Wang , Wenzhe Niu , Qinghua Hu , Chee Keong Kwoh , Min Wu